Assignee
YUKONG LTD
KR·33 granted patents·948 citations·filing 1990–1998
Top patents by PatentIndex Score
33 records- 0193US5756817AO-carbamoyl-phenylalaninol compounds, their pharmaceutically useful salts and process for preparing the sameYUKONG LTD·Filed 1996·Granted May 26, 1998·113 cites·35 claims
- 0292US5705640AO-carbamoyl-(d)-phenylalaninol compounds, their pharmaceutically useful salts and process for preparing the sameYUKONG LTD·Filed 1996·Granted Jan 6, 1998·89 cites·2 claims
- 0391US5955499APhenylalkylaminoalcohol carbamates and process for preparing the sameYUKONG LTD·Filed 1995·Granted Sep 21, 1999·118 cites·10 claims
- 0486US5932181ANatural gas-using hydrogen generatorYUKONG LTD·Filed 1997·Granted Aug 3, 1999·131 cites·15 claims
- 0582US5854283AHalogen substituted carbamate compounds from 2-phenyl-1,2-ethanediolYUKONG LTD·Filed 1997·Granted Dec 29, 1998·38 cites·6 claims
- 0680US5714545AThermoplastic elastomeric composition and process for preparing the sameYUKONG LTD·Filed 1996·Granted Feb 3, 1998·53 cites·25 claims
- 0779US5861461ABiodegradable plastic composition, method for preparing thereof and product prepared therefromYUKONG LTD·Filed 1996·Granted Jan 19, 1999·49 cites·13 claims
- 0877US5580442AMethod for producing feedstocks of high quality lube base oil from unconverted oil of fuels hydrocracker operating in recycle modeYUKONG LTD·Filed 1994·Granted Dec 3, 1996·47 cites·10 claims
- 0976US5698588AHalogen substituted carbamate compounds from 2-phenyl-1,2-ethanediolYUKONG LTD·Filed 1996·Granted Dec 16, 1997·27 cites·7 claims
- 1076US5239000AThermoplastic elastomer and process for preparationYUKONG LTD·Filed 1991·Granted Aug 24, 1993·30 cites·8 claims
- 1175US5958368ANoncrystalline mesoporous molecular sieve substance and method for preparing the sameYUKONG LTD·Filed 1997·Granted Sep 28, 1999·39 cites·12 claims
- 1270US6031119APolyalkylene guanidine salts or polyalkylene biguanidine salts having a branched silane compound, method for preparing same and uses thereofYUKONG LTD·Filed 1997·Granted Feb 29, 2000·30 cites·7 claims
- 1370US5461093ABiodegradable polyethylene composition chemically bonded with starch and a process for preparing thereofYUKONG LTD·Filed 1993·Granted Oct 24, 1995·28 cites·15 claims
- 1468US5461094ABiodegradable polyethylene composition chemically bonded with starch and a process for preparing thereofYUKONG LTD·Filed 1993·Granted Oct 24, 1995·24 cites·15 claims
- 1561US5654461ASulfamate compound containing carbamoyl groupYUKONG LTD·Filed 1996·Granted Aug 5, 1997·7 cites·3 claims
- 1659US5892088ASulfamate compound containing N-substituted carbamoyl group and method for preparing the sameYUKONG LTD·Filed 1996·Granted Apr 6, 1999·7 cites·3 claims
- 1759US5641833APolyolefinic blend and process for preparing the sameYUKONG LTD·Filed 1995·Granted Jun 24, 1997·23 cites·5 claims
- 1857US5503645ACompound having improved low temperature fluidity, and a middle distillate composition and a petroleum fuel composition containing the sameYUKONG LTD·Filed 1994·Granted Apr 2, 1996·13 cites·2 claims
- 1950US5935997AO-thiocarbamoyl-aminoalkanol compounds, their pharmaceutically useful salts and process for preparing the sameYUKONG LTD·Filed 1998·Granted Aug 10, 1999·4 cites·88 claims
- 2048US5840643ARecovery of oxidation catalysts used for the production of trimellitic acidYUKONG LTD·Filed 1996·Granted Nov 24, 1998·12 cites·14 claims
- 2145US5518893AQuick biochemical oxygen demand test and apparatus for the sameYUKONG LTD·Filed 1994·Granted May 21, 1996·17 cites·4 claims
- 2244US5849772ACarbamate compounds and processes for preparing the sameYUKONG LTD·Filed 1995·Granted Dec 15, 1998·6 cites·14 claims
- 2339US5763352ACatalyst composition for the purification of the exhaust of diesel vehicles, catalyst using the same and preparing methods thereofYUKONG LTD·Filed 1995·Granted Jun 9, 1998·15 cites·20 claims
- 2438US5541093AVapor state esterification using enzymesYUKONG LTD·Filed 1995·Granted Jul 30, 1996·2 cites·3 claims
- 2535US5510210ASolid electrolyte for sodium-sulfur secondary cell and process for preparing the sameYUKONG LTD·Filed 1994·Granted Apr 23, 1996·9 cites·2 claims
- 2633US5882932AContinuous quick measurement of biochemical oxygen demand and apparatusYUKONG LTD·Filed 1997·Granted Mar 16, 1999·6 cites·10 claims
- 2733US5367094AConvenient process for the preparation of chiral or racemic phenylalaninols and their N-blocked derivativesYUKONG LTD·Filed 1993·Granted Nov 22, 1994·1 cites·12 claims
- 2832US5627300ACarbamate compounds containing thiocarbamoyl group and process for preparing the sameYUKONG LTD·Filed 1996·Granted May 6, 1997·0 cites·36 claims
- 2930US5171881AProcess for producing trimellitic acidYUKONG LTD·Filed 1990·Granted Dec 15, 1992·1 cites·9 claims
- 3029US5468263AFuel composition containing alkylphenyl poly(oxyalkylene) polyamine acid esterYUKONG LTD·Filed 1994·Granted Nov 21, 1995·5 cites·8 claims
- 3127US5627282AProcess for the preparation of optically pure 1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid and its derivativesYUKONG LTD·Filed 1996·Granted May 6, 1997·2 cites·4 claims
- 3223US5908769ASolvent-free method for reacting short-chain alcohols and acids using C. antarctica lipase immobilized to acrylic resinYUKONG LTD·Filed 1997·Granted Jun 1, 1999·2 cites·4 claims
- 3312US5817858ACarbamate compounds having N-substituted thiocarbamoyl group and process for preparing the sameYUKONG LTD·Filed 1996·Granted Oct 6, 1998·0 cites·22 claims
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